What is a PV module junction box?

PV Module's junction boxes with the IP67 protective level, can provide the safety protection for cable and wiring connection, also for contact protection of non-insulating electric parts. Each module has two individual wires connecting the junction box, one is negative pole and the other is positive pole.

What should I do if my PV module is broken?

Contact with module surfaces or frames may cause electric shock if the front glass is broken or the backsheet is torn. The PV module does not contain any serviceable parts. Do not attempt to repair any part of the module. Keep the junction box cover closed at all times. Do not disassemble a module or remove any module part.

How to connect two modules in a junction box?

Each module has two individual wires connecting the junction box, one is negative pole and the other is positive pole. Two modules can be in series connection by inserting the positive pole at one end of wire of one module into the negative pole of the adjoining module.

How LONGi Solar module junction box works?

LONGi solar module junction box contains bypass diode which is in parallel connection with the cell string. If hot spot occurred, the diode will come into operation to stop the main current from flowing through the hot spot cells in order to prevent module over-heated and performance loss.

Do PV modules need to be connected to ground?

PV module installation site is exposed to long-term humid conditions such as floating PV system. To reduce the risk of PID, on the modules DC connection site, it is recommended to connect the negative to ground. As part of the module design, an anodized corrosion-resistant aluminum alloy frame is used to provide rigidity.

Do PV modules have a switch?

Any contact of 30V or larger DC Voltage can be fatal. In case of no connected load or external circuits, modules can still produce voltage. Please use insulation tools and wear rubber gloves when operating modules in the sunlight. The PV modules do not have a switch.